In pit design, engineers often need to adjust slope angles and berm widths based on rock stability. GEOVIA Surpac supports this by using values stored in the D-field of the pit design string file, with slope angles taken from D1 and berm widths from D2, enabling precise and flexible pit design.
In the example below, the images show the pit bottom boundary with varying slope angle (in decimal degrees) & berm width stored in D1 & D2 field respectively:
To start the pit design, first go to Design > Pit design > Select slope method and select “descriptions” as Design slope angle method:
To define ramp properties, go to Design > Pit design > New ramp; then select the ramp starting points:
Next to expand the bench, go to Design > Expand segment > By bench height, and select the pit bottom segment; then go to Design > Pit design > Display slope angle:
It will generate the ramp as well with specified ramp properties.
Now to expand the pit further with berm width, go to Design > Expand segment > By berm width and select Berm width method as “descriptions”; then go to Design > Pit design > Display berm width: